select the correct answer. the periodic table houses noble gas elements in group 18. these elements are…

select the correct answer. the periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements? a. they easily form covalent bonds. b. the compounds that they form with other elements are very unstable. c. their outermost shell has the maximum number of electrons that it can hold. d. they require less activation energy.

select the correct answer. the periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements? a. they easily form covalent bonds. b. the compounds that they form with other elements are very unstable. c. their outermost shell has the maximum number of electrons that it can hold. d. they require less activation energy.

Answer

Answer:

C. Their outermost shell has the maximum number of electrons that it can hold.

Explanation:

Step1: Recall atomic stability concept

Atoms are stable when their out - most shell is full.

Step2: Analyze noble gas structure

Noble gases have a full outer - most electron shell. For example, helium has 2 electrons filling its first shell, and neon has 8 electrons filling its second shell. This full outer shell configuration gives them high stability and makes them less likely to react with other elements.

Step3: Evaluate each option

  • Option A: Noble gases do not easily form covalent bonds because of their stable electron configuration, so this is incorrect.
  • Option B: The compounds they form (which are rare) are not necessarily unstable. In fact, their stability is due to their full outer shell, so this is incorrect.
  • Option C: This is correct as a full outer - most shell leads to stability.
  • Option D: Activation energy is related to the energy required to start a chemical reaction. Noble gases' stability is due to their electron configuration, not low activation energy, so this is incorrect.